Daikin RY24PEV1K Service Manual page 105

SiK401004_A
 Malfunction display: E9 Malfunction of drain water level
Malfunction of drain
Check if water overflow
the water drainage
water drainage pipe is jammed
97
water level
Yes
Yes
Check if
pump works
Yes
Check if the
or if water flows
smoothly
Yes
Check the water
drainage pipe
Check if the
No
voltage of liquid level switch
end is ok
Check if the
No
voltage of water drainage
pump end is ok
No
Adjust the water drainage
pipe
No
Replace the main board of
the indoor unit
Yes
Check the liquid level
switch
No
Replace the main board of
the indoor unit
Yes
Check the cables of water
drainage pump
MAINTENANCE